String as Filenames

This is a discussion on String as Filenames within the C++ Programming forums, part of the General Programming Boards category; i was wondering if you can have the file name the file ofstream makes when you run your program a ...

  1. #1
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    String as Filenames

    i was wondering if you can have the file name the file ofstream makes when you run your program a string. like if the user wanted to have there own name for the file. thx

  2. #2
    Confused Magos's Avatar
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    You mean like this:
    Code:
    std::string FileName;
    std::ofstream File;
    
    ...
    
    std::cout << "Enter a filename: ";
    std::cin >> FileName;
    
    ...
    
    File.open(FileName.c_str(), std::ios::out);
    if(!File.fail())
    {
       ...
    
       File.close();
    }
    MagosX.com

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  3. #3
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    ummm....maybe, ur code is extremely hard to read. i just want to know if u can have a string be a filename

  4. #4
    Code Goddess Prelude's Avatar
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    >i just want to know if u can have a string be a filename
    Yes.
    My best code is written with the delete key.

  5. #5
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    so would it be like this:?

    [code]
    char name[50]
    cout << "Please enter the filename title: ";
    cin >> name;

    ofstream a_file(name)
    [code]

    ? i didnt include everything needed, like text to be put in the file. but is that how it would look?

  6. #6
    Code Goddess Prelude's Avatar
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    >but is that how it would look?
    More or less. Have you tried it yet to see if it works? Writing little test programs to see if your assumptions are correct is a useful habit to get into.
    My best code is written with the delete key.

  7. #7
    Registered User caroundw5h's Avatar
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    Originally posted by oobootsy1
    ummm....maybe, ur code is extremely hard to read. i just want to know if u can have a string be a filename
    isn't the filename by default a string? You mean have the user rename the file correct?

  8. #8
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    ....i dont have the internet where my computer is, so i only get on the internett at library and such. i mean have the filename a string!

  9. #9
    Carnivore ('-'v) Hunter2's Avatar
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    Yes, your example is what it would look like, except you forgot the semicolon after "char name[50]" and after "ofstream a_file(name)". That's one way to do it. Although Magos' example is more fool-proof.

    Code:
    string name;
    cout << "Please enter the filename title: ";
    cin >> name;
    
    ofstream a_file(name.c_str());
    Just Google It. √

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